moxcms/conversions/
transform_lut3_to_4.rs

1/*
2 * // Copyright (c) Radzivon Bartoshyk 3/2025. All rights reserved.
3 * //
4 * // Redistribution and use in source and binary forms, with or without modification,
5 * // are permitted provided that the following conditions are met:
6 * //
7 * // 1.  Redistributions of source code must retain the above copyright notice, this
8 * // list of conditions and the following disclaimer.
9 * //
10 * // 2.  Redistributions in binary form must reproduce the above copyright notice,
11 * // this list of conditions and the following disclaimer in the documentation
12 * // and/or other materials provided with the distribution.
13 * //
14 * // 3.  Neither the name of the copyright holder nor the names of its
15 * // contributors may be used to endorse or promote products derived from
16 * // this software without specific prior written permission.
17 * //
18 * // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21 * // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
22 * // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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27 * // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29use crate::conversions::LutBarycentricReduction;
30use crate::conversions::interpolator::{BarycentricWeight, MultidimensionalInterpolation};
31use crate::transform::PointeeSizeExpressible;
32use crate::{
33    BarycentricWeightScale, CmsError, DataColorSpace, InterpolationMethod, Layout,
34    TransformExecutor, TransformOptions,
35};
36use num_traits::AsPrimitive;
37use std::marker::PhantomData;
38
39pub(crate) struct TransformLut3x4<
40    T,
41    U: AsPrimitive<usize>,
42    const LAYOUT: u8,
43    const GRID_SIZE: usize,
44    const BIT_DEPTH: usize,
45    const BINS: usize,
46    const BARYCENTRIC_BINS: usize,
47> {
48    pub(crate) lut: Vec<f32>,
49    pub(crate) _phantom: PhantomData<T>,
50    pub(crate) _phantom1: PhantomData<U>,
51    pub(crate) interpolation_method: InterpolationMethod,
52    pub(crate) weights: Box<[BarycentricWeight<f32>; BINS]>,
53    pub(crate) color_space: DataColorSpace,
54    pub(crate) is_linear: bool,
55}
56
57impl<
58    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible,
59    U: AsPrimitive<usize>,
60    const LAYOUT: u8,
61    const GRID_SIZE: usize,
62    const BIT_DEPTH: usize,
63    const BINS: usize,
64    const BARYCENTRIC_BINS: usize,
65> TransformLut3x4<T, U, LAYOUT, GRID_SIZE, BIT_DEPTH, BINS, BARYCENTRIC_BINS>
66where
67    f32: AsPrimitive<T>,
68    u32: AsPrimitive<T>,
69    (): LutBarycentricReduction<T, U>,
70{
71    #[inline(never)]
72    fn transform_chunk(
73        &self,
74        src: &[T],
75        dst: &mut [T],
76        interpolator: Box<dyn MultidimensionalInterpolation + Send + Sync>,
77    ) {
78        let cn = Layout::from(LAYOUT);
79        let channels = cn.channels();
80
81        let value_scale = ((1 << BIT_DEPTH) - 1) as f32;
82
83        for (src, dst) in src.chunks_exact(channels).zip(dst.chunks_exact_mut(4)) {
84            let x = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
85                src[cn.r_i()],
86            );
87            let y = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
88                src[cn.g_i()],
89            );
90            let z = <() as LutBarycentricReduction<T, U>>::reduce::<BIT_DEPTH, BARYCENTRIC_BINS>(
91                src[cn.b_i()],
92            );
93
94            let v = interpolator.inter4(
95                &self.lut,
96                &self.weights[x.as_()],
97                &self.weights[y.as_()],
98                &self.weights[z.as_()],
99            );
100            if T::FINITE {
101                let r = v * value_scale + 0.5;
102                dst[0] = r.v[0].min(value_scale).max(0.).as_();
103                dst[1] = r.v[1].min(value_scale).max(0.).as_();
104                dst[2] = r.v[2].min(value_scale).max(0.).as_();
105                dst[3] = r.v[3].min(value_scale).max(0.).as_();
106            } else {
107                dst[0] = v.v[0].as_();
108                dst[1] = v.v[1].as_();
109                dst[2] = v.v[2].as_();
110                dst[3] = v.v[3].as_();
111            }
112        }
113    }
114}
115
116impl<
117    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible,
118    U: AsPrimitive<usize>,
119    const LAYOUT: u8,
120    const GRID_SIZE: usize,
121    const BIT_DEPTH: usize,
122    const BINS: usize,
123    const BARYCENTRIC_BINS: usize,
124> TransformExecutor<T>
125    for TransformLut3x4<T, U, LAYOUT, GRID_SIZE, BIT_DEPTH, BINS, BARYCENTRIC_BINS>
126where
127    f32: AsPrimitive<T>,
128    u32: AsPrimitive<T>,
129    (): LutBarycentricReduction<T, U>,
130{
131    fn transform(&self, src: &[T], dst: &mut [T]) -> Result<(), CmsError> {
132        let cn = Layout::from(LAYOUT);
133        let channels = cn.channels();
134        if src.len() % channels != 0 {
135            return Err(CmsError::LaneMultipleOfChannels);
136        }
137        if dst.len() % 4 != 0 {
138            return Err(CmsError::LaneMultipleOfChannels);
139        }
140        let src_chunks = src.len() / channels;
141        let dst_chunks = dst.len() / 4;
142        if src_chunks != dst_chunks {
143            return Err(CmsError::LaneSizeMismatch);
144        }
145
146        if self.color_space == DataColorSpace::Lab
147            || (self.is_linear && self.color_space == DataColorSpace::Rgb)
148            || self.color_space == DataColorSpace::Xyz
149        {
150            use crate::conversions::interpolator::Trilinear;
151            self.transform_chunk(src, dst, Box::new(Trilinear::<GRID_SIZE> {}));
152        } else {
153            match self.interpolation_method {
154                #[cfg(feature = "options")]
155                InterpolationMethod::Tetrahedral => {
156                    use crate::conversions::interpolator::Tetrahedral;
157                    self.transform_chunk(src, dst, Box::new(Tetrahedral::<GRID_SIZE> {}));
158                }
159                #[cfg(feature = "options")]
160                InterpolationMethod::Pyramid => {
161                    use crate::conversions::interpolator::Pyramidal;
162                    self.transform_chunk(src, dst, Box::new(Pyramidal::<GRID_SIZE> {}));
163                }
164                #[cfg(feature = "options")]
165                InterpolationMethod::Prism => {
166                    use crate::conversions::interpolator::Prismatic;
167                    self.transform_chunk(src, dst, Box::new(Prismatic::<GRID_SIZE> {}));
168                }
169                InterpolationMethod::Linear => {
170                    use crate::conversions::interpolator::Trilinear;
171                    self.transform_chunk(src, dst, Box::new(Trilinear::<GRID_SIZE> {}));
172                }
173            }
174        }
175
176        Ok(())
177    }
178}
179
180pub(crate) fn make_transform_3x4<
181    T: Copy + AsPrimitive<f32> + Default + PointeeSizeExpressible + 'static + Send + Sync,
182    const GRID_SIZE: usize,
183    const BIT_DEPTH: usize,
184>(
185    layout: Layout,
186    lut: Vec<f32>,
187    options: TransformOptions,
188    color_space: DataColorSpace,
189    is_linear: bool,
190) -> Box<dyn TransformExecutor<T> + Sync + Send>
191where
192    f32: AsPrimitive<T>,
193    u32: AsPrimitive<T>,
194    (): LutBarycentricReduction<T, u8>,
195    (): LutBarycentricReduction<T, u16>,
196{
197    match layout {
198        Layout::Rgb => match options.barycentric_weight_scale {
199            BarycentricWeightScale::Low => Box::new(TransformLut3x4::<
200                T,
201                u8,
202                { Layout::Rgb as u8 },
203                GRID_SIZE,
204                BIT_DEPTH,
205                256,
206                256,
207            > {
208                lut,
209                _phantom: PhantomData,
210                _phantom1: PhantomData,
211                interpolation_method: options.interpolation_method,
212                weights: BarycentricWeight::<f32>::create_ranged_256::<GRID_SIZE>(),
213                color_space,
214                is_linear,
215            }),
216            #[cfg(feature = "options")]
217            BarycentricWeightScale::High => Box::new(TransformLut3x4::<
218                T,
219                u16,
220                { Layout::Rgb as u8 },
221                GRID_SIZE,
222                BIT_DEPTH,
223                65536,
224                65536,
225            > {
226                lut,
227                _phantom: PhantomData,
228                _phantom1: PhantomData,
229                interpolation_method: options.interpolation_method,
230                weights: BarycentricWeight::<f32>::create_binned::<GRID_SIZE, 65536>(),
231                color_space,
232                is_linear,
233            }),
234        },
235        Layout::Rgba => match options.barycentric_weight_scale {
236            BarycentricWeightScale::Low => Box::new(TransformLut3x4::<
237                T,
238                u8,
239                { Layout::Rgba as u8 },
240                GRID_SIZE,
241                BIT_DEPTH,
242                256,
243                256,
244            > {
245                lut,
246                _phantom: PhantomData,
247                _phantom1: PhantomData,
248                interpolation_method: options.interpolation_method,
249                weights: BarycentricWeight::<f32>::create_ranged_256::<GRID_SIZE>(),
250                color_space,
251                is_linear,
252            }),
253            #[cfg(feature = "options")]
254            BarycentricWeightScale::High => Box::new(TransformLut3x4::<
255                T,
256                u16,
257                { Layout::Rgba as u8 },
258                GRID_SIZE,
259                BIT_DEPTH,
260                65536,
261                65536,
262            > {
263                lut,
264                _phantom: PhantomData,
265                _phantom1: PhantomData,
266                interpolation_method: options.interpolation_method,
267                weights: BarycentricWeight::<f32>::create_binned::<GRID_SIZE, 65536>(),
268                color_space,
269                is_linear,
270            }),
271        },
272        _ => unimplemented!(),
273    }
274}
moxcms/conversions/transform_lut3_to_4.rs

moxcms/conversions/
transform_lut3_to_4.rs
